Home / 77,764.56-107,332.64-47,575.05

Finding the Fourth Proportional to 77,764.56, 107,332.64 and 47,575.05

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Solution

The fourth proportional to 77,764.56, 107,332.64 and 47,575.05 is: 65,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.56 : 107,332.64 = 47,575.05 : x
  2. Step 2: Convert to fraction form
    77,764.56/107,332.64 = 47,575.05/x
  3. Step 3: Cross multiply
    77,764.56x = 107,332.64 × 47,575.05
  4. Step 4: Simplify right side
    77,764.56x = 5,106,355,520.28
  5. Step 5: Solve for x
    x = 5,106,355,520.28/77,764.56
  6. Step 6: Final answer
    x = 65,664.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.